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10 bestEngine Treatment For High Mileageof May 2025

112M consumers helped this year.

30% off

1

STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

STP

9.8

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14% off

2

Wynn's W12264 Extreme Diesel System Fuel Injector Cleaner Engine Additive Treatment 325ml
Wynn's W12264 Extreme Diesel System Fuel Injector Cleaner Engine Additive Treatment 325ml

Wynn's

9.6

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28% off

3

LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591
LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591

Liqui Moly

9.4

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29% off

4

STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

STP

9.1

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10% off

5

Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml
Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml

Wynn's

8.8

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Wynn's 1831090 Stop Smoke For Oil Additive For Reducing Petrol & Diesel Engine Exhaust Emissions, Purple, 325ml

Wynn's 1831090 Stop Smoke For Oil Additive For Reducing Petrol & Diesel Engine Exhaust Emissions, Purple, 325ml

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Lucas Oil 40001 Heavy Duty Oil Stabilizer-1L

Lucas Oil 40001 Heavy Duty Oil Stabilizer-1L

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Wynn's Formula Gold High Performance Diesel System Treatment 500ml

Wynn's Formula Gold High Performance Diesel System Treatment 500ml

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Wynn's Formula Gold Engine Oil Treatment Increase Compression And Reduces Wear Petrol & Diesel

Wynn's Formula Gold Engine Oil Treatment Increase Compression And Reduces Wear Petrol & Diesel

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6

Wynn's Professional Formula Extreme Diesel Injector Cleaner Fuel System Additive 500ml
Wynn's Professional Formula Extreme Diesel Injector Cleaner Fuel System Additive 500ml

Wynn's

8.5

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14% off

7

STP Diesel High Milage Injector Cleaner 200 ml, Cleans and Protects your Engine for 300 miles, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP Diesel High Milage Injector Cleaner 200 ml, Cleans and Protects your Engine for 300 miles, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

STP

8.3

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34% off

8

Wynns 1831039 76401 500ml Formula Gold Diesel
Wynns 1831039 76401 500ml Formula Gold Diesel

Wynn's

8.0

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9

Liqui Moly 1803 Injection Cleaner 300ml
Liqui Moly 1803 Injection Cleaner 300ml

Liqui Moly

7.7

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10

Wynn's Super Charge Oil Treatment Compression Restoring Additive For Petrol & Diesel Engines 425ml
Wynn's Super Charge Oil Treatment Compression Restoring Additive For Petrol & Diesel Engines 425ml

Wynn's

7.4

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